
/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_CONFIG_H_INCLUDED_
#define _NGX_CONFIG_H_INCLUDED_


#include <ngx_auto_headers.h>


#if defined __DragonFly__ && !defined __FreeBSD__
#define __FreeBSD__       4
#define __FreeBSD_version 480101
#endif


#if (NGX_FREEBSD)
#include <ngx_freebsd_config.h>


#elif (NGX_LINUX)
#include <ngx_linux_config.h>


#elif (NGX_SOLARIS)
#include <ngx_solaris_config.h>


#elif (NGX_DARWIN)
#include <ngx_darwin_config.h>


#elif (NGX_WIN32)
#include <ngx_win32_config.h>


#else /* POSIX */
#include <ngx_posix_config.h>

#endif


#ifndef NGX_HAVE_SO_SNDLOWAT
#define NGX_HAVE_SO_SNDLOWAT 1
#endif


#if !(NGX_WIN32)

#define ngx_signal_helper(n) SIG##n
#define ngx_signal_value(n)  ngx_signal_helper(n)

#define ngx_random random

/* TODO: #ifndef */
#define NGX_SHUTDOWN_SIGNAL    QUIT
#define NGX_TERMINATE_SIGNAL   TERM
#define NGX_NOACCEPT_SIGNAL    WINCH
#define NGX_RECONFIGURE_SIGNAL HUP

#if (NGX_LINUXTHREADS)
#define NGX_REOPEN_SIGNAL    INFO
#define NGX_CHANGEBIN_SIGNAL XCPU
#else
#define NGX_REOPEN_SIGNAL    USR1
#define NGX_CHANGEBIN_SIGNAL USR2
#endif

#define ngx_cdecl
#define ngx_libc_cdecl

#endif

typedef intptr_t  ngx_int_t;
typedef uintptr_t ngx_uint_t;
typedef intptr_t  ngx_flag_t;


#define NGX_INT32_LEN (sizeof("-2147483648") - 1)
#define NGX_INT64_LEN (sizeof("-9223372036854775808") - 1)

#if (NGX_PTR_SIZE == 4)
#define NGX_INT_T_LEN       NGX_INT32_LEN
#define NGX_MAX_INT_T_VALUE 2147483647

#else
#define NGX_INT_T_LEN       NGX_INT64_LEN
#define NGX_MAX_INT_T_VALUE 9223372036854775807
#endif


#ifndef NGX_ALIGNMENT
#define NGX_ALIGNMENT sizeof(unsigned long) /* platform word */
#endif

#define ngx_align(d, a) (((d) + (a - 1)) & ~(a - 1))
#define ngx_align_ptr(p, a) \
    (u_char *)(((uintptr_t)(p) + ((uintptr_t)a - 1)) & ~((uintptr_t)a - 1))


#define ngx_abort abort


/* TODO: platform specific: array[NGX_INVALID_ARRAY_INDEX] must cause SIGSEGV */
#define NGX_INVALID_ARRAY_INDEX 0x80000000


/* TODO: auto_conf: ngx_inline   inline __inline __inline__ */
#ifndef ngx_inline
#define ngx_inline inline
#endif

#ifndef INADDR_NONE /* Solaris */
#define INADDR_NONE ((unsigned int)-1)
#endif

#ifdef MAXHOSTNAMELEN
#define NGX_MAXHOSTNAMELEN MAXHOSTNAMELEN
#else
#define NGX_MAXHOSTNAMELEN 256
#endif


#define NGX_MAX_UINT32_VALUE (uint32_t)0xffffffff
#define NGX_MAX_INT32_VALUE  (uint32_t)0x7fffffff


#if (NGX_COMPAT)

#define NGX_COMPAT_BEGIN(slots) uint64_t spare[slots];
#define NGX_COMPAT_END

#else

#define NGX_COMPAT_BEGIN(slots)
#define NGX_COMPAT_END

#endif


#endif /* _NGX_CONFIG_H_INCLUDED_ */
